Since this temple has been dedicated to space called Akash in Sanskrit, the main deity is called Akashapureeswar and the female deity called Mangalambika meaning the mother who grants prosperity. The Poorada Nakshathira remain serving Lord Akashapureeswar. It is believed that entire deities residing in space and Lord Vastu worship Lord Akashapureeswar on Poorada nakshathira days. Generally some mystically important Temples are dedicated to the five elements like Space, Fire, Wind, Water and Earth and such temples are considered to be highly sacred and holiest to visit and get the grace of the Lord manifest there.
The sacredness of the Kaduveli temple is that when Lord Shiva manifested before Kaduveli Sitdhar, in order not to be hinder the worship of the Sithar to Lord Shiva, Nandi Deva, carrier vehicle of Lord Shiva moved outside and sat there; hence the idol of Nandi Deva is established outside the sanctum area where Nandi Deva sat after giving way to Kaduveli Siddha to worship the Lord.
Since the belief is that it is auspicious for those born under Poorada nakshathira to visit this temple and make offerings to Akashapureeswar on the day of their Nakshathira birthday, devotees specially born on Poorada Nakshathira come here to offer prayers and seek the grace of Lord Akashapureeswar and Mangalambika to wash away their sins, obstacles in life and get relief from the ill effects of stars. The Poorada Nakshathira remain serving Lord Akashapureeswar here and therefore the ill effects of planetary afflictions are nullified by the grace of the Lord.
The devotees are suggested to offer the Lord Punugu and Javvadhu powder for their bright future. (While Punugu is fragrant substance got from rarely living civet cat Javvadhu Powder is extracted from Indian herb called Javvadhu. Both the perfume powders are applied on the deity idols, yantras while performing pujas). specially those facing obstacles in the marriage proposals visit this shrine and pray goddess Mangalambika seeking her grace to rid of the obstacles.
The Kaduveli temple it is appropriate to conduct the Vastu Pooja for the earth element before constructing a building or home so that there would be no obstacles during the construction.